Work Text:
Well, that wasn’t good.
Donnie had craned his neck to view his soft shelled back in the mirror, the dull throb of pain finally being enough to warrant his attention, to pull him away from his days upon days worth of tech repair he had to go through after the kraang had destroyed his precious turtle tank, along with most of the equipment in his lab being shot.
It was annoying, sure. To have so much work to do, especially when his hands couldn’t help but tremble most of the time, and his back no short of
pulsed
in anguish.
Well, maybe not anguish. That was a bit dramatic, Donatello.
Still, it hadn’t been enough to garner his attention, having way too much on his plate after the kraang invasion. After all, he was dealing with a lot less than his brother’s were.
Mikey had still sometimes rubbed his wrists, phantom pains from his very being having chipped away as he summoned the portal causing him to have tremors, often dropping things and sheepishly asking if Donnie could fix them.
Who would Donatello be if he denied the request, even if the crushing weight of tasks was too much for his soft-shelled back to support. It wasn’t about him.
Not only that, but Raph had been kraangified, his very body sprouting the ugly growths of tentacles. Their eldest brother often woke up with nightmares where only Donnie had been awake.
(It had never crossed either of their minds why Donnie was always up so late. Good, Raph didn’t need to know how many sleepless nights his purple brother had gone through, draining pitcher after pitcher of coffee to keep himself awake. That had to have not helped his new shaking development.)
Either way, Donnie would pause his coffee brewing to let Raph pull him into a tight hug, ignoring the spikes of pain that would shoot through him as his battle shell crushed against his raw, over-sensitive one.
It didn’t matter. Donnie’s brother needed him.
The only time Donatello would take breaks, other than those fleeting moments with his other two brother’s, would be when Leo had portaled into his lab, bypassing his security system with ease, usually with a blanket with him as the blue- turtle would sit huddled next to Donnie’s table and watch as his twin brother worked.
Usually it was distracting, not an annoyance but the eyes on Donnie were enough to make him feel vulnerable, causing him to make mistakes that he would usually be able to avoid. He’d always bite back a frustrated huff and turn to Leo, unable to keep his expression from softening when their eyes met. His heart would betray him, face taking on a rosy flush as he took in the sight of his brother. Leo had chosen to come to Donnie .
It was something Donnie’s traitor heart would skip a beat over.
Leo would always look so ashamed to be there, struggling with the knowledge that he needed love and support from his family. Something Donnie found hard to freely give. When Donnie would hold out his arms however, both real and robotic ones outstretched, Leo would leap into his arms, burying his face in his twin’s plastron as he tried to hold back wet sobs. No matter what, Donnie had to be there to support him.
(Even if it meant he had to stop supporting himself in the process.)
Donnie was starting to lose track of the days, the weak rumbles of his stomach had long since stopped. Starting to get used to the weird taste in his mouth from lack of oral hygiene and the grime under his fingernails that made his skin itch. He refused to give in, lest he fall behind.
The next time they had one of these sessions, however, Leo had complained about how Donnie “totally reeked dude!” and had asked when the last time Donatello had showered was. When his twin responded that he hadn’t had time since the kraang invasion, Leon had visibly recoiled.
Which led him to now. Locked in the bathroom as Leo sat on the other side of the door, refusing to let him out until he heard the shower run. Sigh. Donnie had conceded after some banging on the door, insisting that he had too much work to do, before deciding it was more efficient if he simply conceded just this once.
He was starting to regret that decision now.
It was the first time Donnie had removed his trusty battle shell since the fight with the kraang, back sore and stiff from being held in position.
When he moved to crack his back though, he almost screeched in pain, it wasn’t helped by Leo asking, “you okay in there?” Through the door. He answered that he was fine, because he was. Gritting his teeth as he ambled over to the sink, legs feeling heavy.
That was when the smell hit him.
He expected sweat, obviously built up odor from the battle shell on his back making it unable for his leathery one to breathe. Gross, but expected.
What he didn’t expect, however, was the scent of blood to hit the air, sweet and foul scent cutting through the air. Infection, he realized.
Which led to now, Donnie craning his neck at an uncomfortable angle as he glanced back at his soft shell. Not being good was the understatement of the year. Marking his back were angry reddish-purple cuts. Were they even cuts? They looked bloody but weren’t dripping, only lazily oozing the same purple ooey gooey disgustingness that reminded him of the kraang ship he had connected to.
Apparently exposing his soft shell did have its consequences.
It looked like the roots of a tree, intertwined and spreading across his back, Donnie had to hold back the bile that shot up his throat at the sight. It was then that the door decided to swing open behind him.
“–Dee it’s been 20 minutes and I still don’t hear the shower run– Oh .”
Shit.
“Shit.”
It was silent for a moment. Two.
Then everything happened all at once.
Donnie was never one for crying, but as he attempted to blink away the tears that fell a painful sob ripped its way from the back of his throat. He was weak.
Leo wasn’t doing much better, Donnie could see through bleary eyes that his brother had his ‘ oh fuck oh shit this is not good! ’ look on his face, he was speaking to Donnie, the injured softshell realized after a moment.
“– christ, Dee what the fuck happened? Why didn’t you tell anyone!? Do you realize what could happen to an untreated wound like this?” The words hit Donatello all at once, curling in on himself as he lifted his hands to cover his ears. It was all too much, too loud.
Leo, thankfully, picked up on this rather quickly. Quieting himself down to instead try a different approach. Anger wasn’t helping.
Gentle hands placed themselves on Donnie’s shoulders, and he flinched back, the touch being too much and not enough all at once. There was a loud thud as his body hit the floor, crumpling as Leo followed after, gently caressing his plastron as he silently cried.
There was something pressing against his forehead, somehow soothing the pain that wracked his body. Opening his bleary eyes, Donnie was met with Leo’s face pressed against his own. A headbutt.
They hadn’t done this since they were little. Humanoid traits taking priority over their animalistic nature, and even as tears streamed down Donnie’s face, he blushed.
Calming himself down, Donnie was the first to pull away from the embrace. “...I think I am okay now.”
Leo, who had remained silent until now, huffed a dry laugh at that. “I think you’re far from that, but alright. Showering won’t be good for your back, water pressure and all that. But it
clearly
needs to be disinfected. Can I wipe it down for you?”
Donatello recognized Leon’s tone, it was more of a statement. He was just phrasing it as a question because he knew Donnie needed some semblance of control over the situation that befell him. His brother waited patiently for an answer with his arms crossed.
“...Okay.” Donnie replied, quiet. Too quiet, he wasn’t even sure if Leo had heard him as the slider blinked. He was about to repeat himself before his twin’s face broke out into a grin.
“Great!” Leo clapped his hands together, before standing up and pulling out his sword, portaling the two of them to Leon’s own bedroom. On his bed.
Donnie hoped his mask was covering his flushed cheeks.
It wasn’t even that Leo was doing anything worth blushing over! Ever since he almost lost his twin though, Donnie had developed some strange and unwelcomed feelings for his brother.
Every moment between them was cherished, the quiet hours that they would spend together in Donnie’s lab being some of the most comforting in his life. Even if Donnie wasn’t the best with feelings, ew. He knew that there was something in him that cared about Leonardo as more than a brother.
It was a realization that scared him.
“Lay down and try to relax, I can practically hear your brain overheating from here. Maybe you should install some fans in your head to cool it down.” The quip was not lost on Donnie, but he was too busy freaking out to do anything other than what he was told.
Directions. He could follow directions.
Trying to keep his shoulders from tensing, Donnie allowed his face to hit the pillow. It took all his willpower to not fall asleep then and there. For the love of science, how long had it been since he slept? Not to mention that Leon’s bed was softer than his own, having gathered a hoard of the softest blankets in the sewers over the years.
“This might sting a bit, sorry.” Leo spoke sheepishly above him, but honestly Donnie couldn’t help but not care as the world slowly drifted away, brain coated in a comfortable layer of cotton as he hummed out a response.
He was quickly shocked out of his comfortable position, yelp escaping his lips as he cringed in pain. The urge to crawl out of his own shell was strong, and he probably would have if it was biologically possible.
Arching his back with a low hiss, Donnie glared back at Leo. While yes, he was being gentle. It still did, in fact, hurt like a bitch.
Leon looked at him with apologetic eyes, “ sorry .” He rubbed over the edge of Donnie’s shell with feather-light fingers.
And oh.
The touch sent a sensation he’d never felt before crashing through him like a tidal wave of pure ecstasy. His pleasure was voiced with a low churring moan.
They both froze at that.
Donnie froze in place, pretending that if he was still enough he could sink out of this realm into another existence where that did not just happen.
Unfortunately, the universe was unkind. No matter how much Donnie willed it to be otherwise, he stayed in place on the bed– his brother’s bed, mind you– where he had just made an unmistakable sound of distinct pleasure.
Dead silent and tense, Donnie closed his eyes, burying his face into his pillow and tried to pretend the wetness between his legs didn’t exist.
That was, until Leo's thumb rubbed a small circle into Donnie’s shell with his thumb. Donnie was unable to hold back the weak yet throaty moan that betrayed him.
“You like that?” The tone had an air of teasing where Donatello had expected disgust. He didn’t need to see Leo’s face to know the slider was smirking. The touch continued, causing Donnie to whine pitifully, back arching into the touch. “You do.” Leon had apparently confirmed for himself, words sounding breathy as his other hand dropped the towel he had been cleaning Donnie’s shell with.
Embarrassment coiled in Donnie’s stomach, a rubber band ready to snap into his chest as Leo’s other hand trailed between the softshelled’s legs, fingers prodding at his clothed slit.
Leaning over Donnie, careful to avoid his shell as he whispered into his brother’s ear, Leo’s words were hushed and low. “You’re soaked.” It wasn’t an exaggeration, Donnie had soaked through his spandex pants, leaving a wet spot on the sheets beneath him. He winced, hoping Leo wouldn’t be too ruthless with his bullying of Donnie for it.
This whole situation had gotten out of hand, why was his brother touching him like this in the first place?
Donnie wasn’t stupid, contrary to popular belief. He was, in his humble opinion, a genius. So it was clear to the purple clad turtle that Leo was teasing him, making a sinister joke out of his arousal that had stirred within him. How unfortunate.
“Alright, Nardo. That’s eno ughhuugh ” Donnie’s stern tone had turn into a guttural shout as long fingers dipped into his slit through fabric, rubbing small circles inside of him.
Burying his face into his pillow, Donatello could no longer pretend to have any shred of dignity, reduced to nothing more than a pitiful whelp as he was fingered in his twin brother’s bed.
“Enough?” Leon’s voice was laced with faux surprise, shock even. “Oh, that won’t do, dearest brother. I still need to clean your poor neglected shell.” Donnie rolled his eyes despite the fact that Leo couldn’t see his face. “How about you just lay there and be good while I take care of you?” Leon suggested, his smirk reaching a crescendo.
There was silence for a moment, Donnie feeling small under the weight of Leo's gaze.
It was Donatello who had to break the silence, that was made clear.
“Are you…Serious?” Donnie questioned, his mind reeling as he tried to grasp at straws on what the fuck was going on.
“Dead serious.” Leo replied, not sounding serious at all. Doing nothing to setting the stirring in Donatello’s gut.
“Leo.”
“What?! I’m serious, I want to get down and dirty with you Dee, is that so hard to believe?” Yes.
“Yes.” Donnie’s tone was stale.
“Well it shouldn’t be! Especially when you clearly want the same.” Leo teased. Which was objectively true. Donatello did want this, more than he’d like to admit in all honesty. “So, what’ll it be, hermano?” The brotherly term sounded like a mock more than anything.
“Fine.” Donnie relented, trying to sound unbothered. “Do your worst.”
After all, this was simply a joke, right? At any moment Leo would laugh in Donnie's face, or yell at him in disgust or do anything other than what he was doing now.
That was, in fact, not what occurred.
Instead, Donnie found that his spandex shorts were being pulled down, the thin layer of fabric that covered his modesty stripped away as Leo breathed a sigh against his neck. Donatello's whole body shivered as a rush of cold air hit his exposed hole, muscles tensing and untensing as Leon stroked the underside of his tail.
" Good boy ." The words were teasing, mocking Donnie's arousal as he dripped with slick in the most literal sense of the word. Even with the prerequisite of the words, it didn't stop Donnie from spasming, hips bucking into Leo's hand on impulse. "Yeah? You want me that bad?" Leonardo asked, stroking Donnie's slit as he did the same with his ego.
" Nghh! " Donnie responded smartly, legs kicking as his body reacted to the foreign stimulation.
"Have you ever been touched like this before, Dee?" Leonardo asked, his voice filled with mirth, along with an undertone of an emotion he couldn't place.
Ah, yes. The elephant in the room. Not only was Donatello a virgin, by choice mind you, but also he had never found himself aroused enough to touch himself. The thought of getting his hands sticky and gross being not worth it in his mind.
He had been wrong, however. Because the way Leon was touching with him made Donnie retract every statement he had ever made about sexual intercourse being overrated.
Of course, Donnie was aware that it was because it was Leo. He had only come to the discovery that it had always been Leo a week ago, but he knew that it was his Nardo that was the cause for his sudden change of heart.
A mushy change that wasn't exactly welcome, but firm and unyielding all the same.
"Uh, Dee? Are you still with me, bro?"
Oh, right. He was in the midst of intercourse right now, and Leo had asked him a question.
Donnie's voice was small, an echo of his usual confidence when he spoke. "N-never."
"Not even by yourself?" Was Donatello mistaken or had Leon sounded hopeful?
The softshell shook his head, never.
Leo chuckled at that, lowering himself between Donnie’s legs as his hot breath made his twin’s hole clench around nothing. “Fascinating.” He breathed, the words making Donatello’s stomach do a little flip as he clenched his thighs together, before Leo’s hands stopped him. Firm grip pulling them apart so he could fit his head between them.
“None of that now, I know you want this as much as I do.” Leo chastised, and Donnie’s heart jumped to his throat, Leon had admitted he wanted this as much as Donatello did.
Donnie had churred at that, low and rumbly as he tried to prepare himself mentally. Calm down Donatello, you can do this.
He couldn’t do this.
It was that moment when Leo had decided to bury his face in Donnie’s dripping cloaca, snout undoubtedly becoming covered in slick. Leo didn’t seem to mind, quite the opposite could even be said as the slider let out a happy hum that sent shockwaves up Donnie’s spine.
As Leo licked up the slick that drooled out of Donnie, the injured softshell found himself yearning for more. Experimentally, Donnie allowed himself to grind against the snout pressed between his legs. He was quickly rewarded with a feeling that made his skin buzz, like his very flesh was made of bees.
It seemed to be Leo’s intention to cut Donnie’s reward short. His beloved blue-banded brethren attempting to pull away, probably to make a stupid quip about Donnie being eager or something like that. That would not do. Quickly, Donatello squeezed his thighs together, crushing Leon’s head between them as he continued grinding against his brother’s surprised gasp.
“You said you’d take care of me. Make good on your promise, Nardo. ” Donnie found his voice for the first time that night, eyes narrowing with steely determination.
Leo’s choked off noise of surprise turned into a low moan, churring in approval at the harshness of it. Donnie was going to say something else, drive home the point that at least for the moment, Leo was going to be his fucktoy.
The sentiment was quickly forgotten about though, as Leon's tongue breached his hole and Donnie swore he saw stars. He felt Leo push himself further inside of him, shifting so his nails dug into the insides of Donatello’s thighs. That would bruise later, but he couldn't find it in himself to care.
Donnie was losing his mind, completely overtaken by lust and, most of all, love. Leon had licked him, tongue flicking against his sensitive taint, and Donnie knew that Leo was clearly enjoying himself. That meant Donnie was doing something correct, right?
Eventually, Donnie remembered that Leo did have to actually breathe, and loosened his thigh's grip on Leon's face. The slider gasped as he drew in a breath of fresh air, huffing and panting for a few seconds in a way that made Donatello think he might've gone too far. Until: "That's fuckin' great, Dee."
Leo's words were slurred and hoarse. He felt Leo push himself further inside of him, shifting so his nails dug into the insides of Donatello’s thighs. That would bruise later, but he couldn't find it in himself to care.
Donnie was losing his mind, completely overtaken by lust and, most of all, love. Leon had licked him, tongue flicking against his sensitive taint, and Donnie knew that Leo was clearly enjoying himself. That meant Donnie was doing something correct, right?
Eventually, Donnie remembered that Leo did have to actually breathe, and loosened his thigh's grip on Leon's face. The slider gasped as he drew in a breath of fresh air, huffing and panting for a few seconds in a way that made Donatello think he might've gone too far. Until: "That's fuckin' great, Dee."
Leo's words were slurred and hoarse, s till slightly winded as the bed creaked. "D'ya think you could flip onto your back? Wanna see that pretty face."
Donnie blushed at the odd request, flipping over with ease before being hit with the shock of instant regret. Right. His back. He remembered with a low hiss of pain as he eased into the covers of Leo's bed. He had forgotten in the moment about his injury, and now that he'd been reminded it seemed Leo had as well. His glassy eyes somewhat clearing as he winced.
"My bad..." Leo winced, face apologetic. "That was a bad idea."
Donnie couldn't help but disagree when taking in the sight in front of him.
Leo had lidded eyes, his lips contorted into a permanent smirk at this point even as Donnie's own slick dripped down his face. Unconsciously, the turtle poked his tongue out of his mouth to stop it from pooling on his upper lip. It was... extremely erotic.
Donatello's actions weren't his own as he leaned down to pull Leo into a kiss, slightly manhandling him so that their pelvises were slotted together. They were twins, quite literally two sides of the same coin, a pair of puzzle pieces that clicked together perfectly.
Leo's eyes seemed to widen as Donnie initiated something for the first time that night, doing something other than following directions.
It was sloppy, the way Donnie had borderline bashed his lips against Leo's. His first real kiss being with his brother set something inside of Donnie alight. Eventually, Leo took the lead. Hand gently guiding Donnie's cheek as they kissed to have smoother, lesser jerky and more practiced movements.
The guidance was welcome.
Churring, Leo pulled away, a lazy smile slowly spreading across his lips. "You should see yourself, Dee. Such a mess just for me. It's so cute."
The words felt patronizing, but something inside of Donnie twitched. Slit leaking profusely as Leo crawled over him, causing the softshell to lean back as he did so.
“You’ve never dropped before?” It was phrased as a question, but they both knew the answer, Donnie had never even looked down there. Not even for scientific purposes! The thought had made him squeamish.
Which is why it was so strange how natural, albeit clunky, everything felt.
Donnie shook his head in response, mouth dry.
“Of course not.” Leon grinned, pressing their snouts together so they scrunched. “I guessed that much.”
Donnie frowned at that, slightly irritated at his brother’s antics as Leo sat back up. “No need to be a dick about it.” He huffed, body betraying him as he continued to make a mess of the sheets on Leo’s bed.
“
Relax,
Dee. I’m just teasing.” Leo’s face was overtaken by a shit eating grin, why was he into this guy again? “Between you and me though,” Leo whispered, cupping a hand around his mouth even though it was only the two of them in the room. “I think you’re extremely hot like this.”
Oh yeah, that’s why Donnie was into this guy.
Swallowing down his nerves, Donatello allowed Leo to stroke his plastron. “Relax, hermano.” Leo whispered, easing his pelvis into place so his strong legs were wrapped around Donnie's waist. “I'll take care of you.”
It felt natural, dropping that is. His tense self easing as the muscles that held his cock in place relaxed, dick unfurling from his cloaca with a wet squelch.
" Holy shit. " Leo's seemingly effortless seduction falling to the wayside as Donnie's twin was left speechless, leaving Donatello to wonder if he had done something wrong. "You're fucking hung."
Ah, so it was a good speechless then. That was a relief.
Donatello shrugged nonchalantly, "how would I know?" It was an honest question, one that was met with a giggle from Leo.
"You, Donatello, are a strange one." He snorted, and Donnie couldn't help but smile at that. "Never thought I'd get to see you like this, but..."
Leo trailed off as his fingers wrapped around Donnie's dick, lining it up as the softshell whimpered at the touch.
"I can't wait to ride you."
//
Leo didn't really know how he had gotten himself into this situation, his brother's dick leaking against his slit as he got ready to take it like a champ.
One minute he was cleaning his stupid injured brother's back.
(So fucking stupid, how could Donnie have neglected that? It was obviously painful. Literally throbbing when Leo had seen it.)
The next Leonardo was eating Donnie out like his twin was a box of Run of the Mill pizza. Except way sexier. Way better in terms of getting them both off.
Leo hadn't expected his prude of a brother to be such a whore. His inexperience was expected, welcomed in Leon's opinion, but his slutty eagerness was more than Leo could've dreamed of.
Not that he had dreams of this, or well... Okay, so Leo had been wanting this for a while. He could admit that to himself. There was a reason that Leonardo had seeked out Donnie whenever memories of the kraang had gotten too intense.
His brother was different.
The way Leo felt about Donnie was different.
Besides, his brother had worked himself to the bone without a single complaint. In fact, Donnie had hidden it. Which infinitely pissed Leo off.
His brother knew he could ask for help, right?
(Obviously not. If his hidden injury was any indication.)
So when Donatello had bit back a moan that made Leo's heart stop, he quickly recovered with a plan.
Leo was going to help Donnie relax, whether his brother liked it or not.
"Okay bro," Leo whispered, hoping Donnie hadn't heard him. "Are you ready to get wrecked?"
With those few words Leo steeled himself, lowering onto Donnie's length.
It wasn't easy, the burn of his thighs making him deeply aware of that, but eventually Donnie had bottomed out inside of him. When Leo opened his eyes it was all worth it.
Donnie's own eyes were squeezed shut, teeth grit and fists curled as his eyebrows pulled together in a trembling line. His brother was shaking apart in pleasure, and it was all thanks to Leo.
Pride swelled in Leon's chest, the urge to keep going flooding the need to adjust as he grinded down. It was well worth his own gasp of pleasure as Donnie yelped, fists thumping against the mattress from the stimulation.
Leo could feel it, the way his brother was throbbing inside of him. Filling him with a carnal need to be filled with cum.
Lifting his hips, Leo gripped onto Donnie's shoulders for leverage, rocking his hips to a messy rhythm as Donatello made inhumane noises underneath him.
It took Leo's hands gently taking hold of Donnie's face to bring the purple turtle back to reality, eyes opening with a low whine.
"I know Dee, I know." Leo hushed, "But do you think you could fuck me?"
The request lit Leo's cheeks on fire, but it was so worth it when Donnie's gaze snapped back to reality, eyes seeing for the first time since he opened them.
Leo's breath was knocked out of him as Donnie flipped him on his back, slowly thrusting without rhythm until Donatello seemingly got his head in the game. The snap of his twin's hips becoming faster and more calculated.
Firm hands were gripping Leo's waist, holding him in place as he crossed his legs around Donnie's own, keeping him close without interrupting his thrusts.
The pleasure was addictive, Leon unable to stop churring as his breaths stuttered. Hands wrapped around Donnie's neck as his toes curled. Body wracked with the feeling of being full.
Leo made a low, soft sound as Donnie's mouth released a whimper, half-moaning, half-sobbing as Leonardo crashed his lips against Donnie's own in a flurry of passion, muffling the sound as he peppered Donatello's face with kisses.
Eventually Donnie lost his rhythm, sporadically bucking his hips inside of Leo before shoving inside one last time. Burying his face into Leo's shoulder with a drawn out cry.
Donnie's cum flooded him, Leo continuing to grind down against his brother. Walls tightening as his own release followed quickly after, shockwaves running through Leo's veins as they laid there, panting breaths in sync as they were tangled in each other's embrace.
Until Donnie crumpled.
Crushed under his brother's weight, Leo let out a low grunt of pain as he attempted to slip his brother's cock out of himself. The appendage disappearing back into his brother like it had never dropped in the first place.
"Alright Dee," Leo mumbled to himself, pushing his brother off of him. "Let's get you cleaned up."
With a satisfying crack of his back, Leo grabbed the long forgotten rags he had grabbed to initially clean out his brother's wounds. Using one to clean up the mess of slick and cum leaking out of him and his brother, (the sheets could be cleaned later) before flipping his brother onto his stomach, disinfecting his shell as his brother slept soundly.
They could talk about what happened later. Unpack everything from their change in relationship to the way Donnie had put other’s well being before his own. Frustrated, Leo huffed, before he glanced at his brother, sleeping soundly in his bed. His expression softened, stroking a hand over Donnie’s finally relaxed shoulder.
Seriously, when was the last time Donnie had actually been this calm? Leo couldn’t remember the last time his twin’s shoulders weren’t hiked up to his ears from being so tense. It was a thought that made Leo frown.
Yes, they had a lot to talk about, but for now? Leonardo was content to have taken care of his brother.
After all, it was his job. Especially when Donatello refused to take care of himself.